--- _id: '3645' abstract: - lang: eng text: Three components of mating call (pulse duration, cycle length, and fundamental frequency) were measured and six diagnostic enzyme loci scored across the hybrid zone between the toads Bombina bombina and B. variegata. All three call components differ significantly, but only cycle length is diagnostic. The clines in call coincide with those for enzymes, and have similar widths. This suggests that there is no strong selection on any of these characters. There are significant correlations between electrophoretic markers and call components, but these are no stronger than would be expected if the electrophoretic loci and the genes causing mating call were neutral. The selection differential on the call is no greater than 6% of the difference in mean cycle length between the two taxa. There is a substantial increase in the variance of cycle length in the center of the zone, suggesting that a small number of loci are involved (≈ three). Recombination between these loci will hinder the evolution of reinforcement and may partly be responsible for the lack of premating isolation between B. bombina and B. variegata. acknowledgement: 'Thanks are due to Drs. A. Leibowitz and P. Mason for help in the field. N.S. would like to thank Drs. K. Ibrahim and R. Nich-ols for discussions, and the Szymura family for their hospitality on his visits to Poland. Dr. R. Butlin provided the program to fit tanh curves to dines. The referees, Prof. A. J. Cain, Ms. L. Humpage and Dr. J. S. Jones made helpful remarks on earlier drafts of the manuscript. Ms. L. Ringrose translated articles from German. N.S. was supported by a NERC studentship, a NERC fellowship and the DHSS, J.S. was supported by the Polish Academy of Sciences (project MRII/ 6), and N.B. by grants from NERC (GR3/ 8002) and SERC (GR/E/08507). ' article_processing_charge: No article_type: original author: - first_name: Neil full_name: Sanderson, Neil last_name: Sanderson - first_name: Jacek full_name: Szymura, Jacek last_name: Szymura - first_name: Nicholas H full_name: Barton, Nicholas H id: 4880FE40-F248-11E8-B48F-1D18A9856A87 last_name: Barton orcid: 0000-0002-8548-5240 citation: ama: Sanderson N, Szymura J, Barton NH. Variation in mating call across the hybrid zone between the fire-bellied toads Bombina bombina and B. variegata. Evolution. 1992;46(3):595-607. doi:10.1111/j.1558-5646.1992.tb02068.x apa: Sanderson, N., Szymura, J., & Barton, N. H. (1992). Variation in mating call across the hybrid zone between the fire-bellied toads Bombina bombina and B. variegata. Evolution. Wiley-Blackwell. https://doi.org/10.1111/j.1558-5646.1992.tb02068.x chicago: Sanderson, Neil, Jacek Szymura, and Nicholas H Barton. “Variation in Mating Call across the Hybrid Zone between the Fire-Bellied Toads Bombina Bombina and B. Variegata.” Evolution. Wiley-Blackwell, 1992. https://doi.org/10.1111/j.1558-5646.1992.tb02068.x. ieee: N. Sanderson, J. Szymura, and N. H. Barton, “Variation in mating call across the hybrid zone between the fire-bellied toads Bombina bombina and B. variegata,” Evolution, vol. 46, no. 3. Wiley-Blackwell, pp. 595–607, 1992. ista: Sanderson N, Szymura J, Barton NH. 1992. Variation in mating call across the hybrid zone between the fire-bellied toads Bombina bombina and B. variegata. Evolution. 46(3), 595–607. mla: Sanderson, Neil, et al. “Variation in Mating Call across the Hybrid Zone between the Fire-Bellied Toads Bombina Bombina and B. Variegata.” Evolution, vol. 46, no. 3, Wiley-Blackwell, 1992, pp. 595–607, doi:10.1111/j.1558-5646.1992.tb02068.x. short: N. Sanderson, J. Szymura, N.H. Barton, Evolution 46 (1992) 595–607. date_created: 2018-12-11T12:04:24Z date_published: 1992-01-01T00:00:00Z date_updated: 2022-03-16T09:52:55Z day: '01' doi: 10.1111/j.1558-5646.1992.tb02068.x extern: '1' external_id: pmid: - '28568664' intvolume: ' 46' issue: '3' language: - iso: eng main_file_link: - url: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1558-5646.1992.tb02068.x month: '01' oa_version: None page: 595 - 607 pmid: 1 publication: Evolution publication_identifier: issn: - 0014-3820 publication_status: published publisher: Wiley-Blackwell publist_id: '2738' quality_controlled: '1' status: public title: Variation in mating call across the hybrid zone between the fire-bellied toads Bombina bombina and B. variegata type: journal_article user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17 volume: 46 year: '1992' ...